mainline inclusion
from mainline-5.13-rc1
commit 523a4cf4
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5EUVD
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=523a4cf491b3c9e2d546040d57250f1a0ca84f03

-------------------------------------------------

Instead of using integer literal here and there use macro name for
better context.
Signed-off-by: NDmitrii Banshchikov <me@ubique.spb.ru>
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Acked-by: NMartin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210225202629.585485-1-me@ubique.spb.ru
(cherry picked from commit 523a4cf4)
Signed-off-by: NWang Yufen <wangyufen@huawei.com>